Plant and Equipment - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment, Net [Abstract]
Depreciation of property and equipment	$ 17,313	$ 17,313	$ 34,626	$ 34,626